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EN 1.0456 Steel vs. EN 1.7729 Steel

Both EN 1.0456 steel and EN 1.7729 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.0456 steel and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 130
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24 to 26
17
Fatigue Strength, MPa 210 to 220
500
Impact Strength: V-Notched Charpy, J 38 to 45
46
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 270 to 280
560
Tensile Strength: Ultimate (UTS), MPa 420 to 450
910
Tensile Strength: Yield (Proof), MPa 290 to 300
750

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
430
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 20
49
Embodied Water, L/kg 49
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 99
150
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 230
1500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 16
32
Strength to Weight: Bending, points 16 to 17
27
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 13 to 14
27

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.2
0.17 to 0.23
Chromium (Cr), % 0 to 0.3
0.9 to 1.2
Copper (Cu), % 0 to 0.35
0 to 0.2
Iron (Fe), % 96.7 to 99.48
94.8 to 97
Manganese (Mn), % 0.5 to 1.4
0.35 to 0.75
Molybdenum (Mo), % 0 to 0.1
0.9 to 1.1
Nickel (Ni), % 0 to 0.3
0 to 0.2
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.030
0.070 to 0.15
Vanadium (V), % 0 to 0.050
0.6 to 0.8